Validate NXDL definitions

Validate all NXDL definitions from the official NeXus repository

nxdl-validate

Validate one or more specific NXDL definitions from the official NeXus repository

nxdl-validate NXentry NXtomo

Validate from another NeXus repository

nxdl-validate --url https://github.com/XraySpectroscopy/nexus_definitions.git NXxas_new

Validate from a local NeXus repository

nxdl-validate --dir /home/${USER}/projects/definitions NXsample NXfluo NXmx